Always have a meeting prior to her taking stuff and jointly agree on what she is having and what you are having. Me and H didn't do this and he was threatening to take everything until a male friend of mine threatened him.
Write a list with her about what's hers and yours, compile it together, then you will avoid this problem.
I wouldn't advise being in the house when she moves the stuff as this was the worst moment of my life. Of all the bad memories I have, that was the most God-awful one, so keep away for your sanity unless you think you can be really strong about it, or have a friend with you to help you both with the move.
You will cry, no doubt about it, but try not to do it while she's there, as it will mess up the DB'ing.
It's normal to cry in this situation, so by all means, cry when you are on your own. Pent up emotion only makes it worse. But don't do what I did and get depression; just keep on focusing on your children as they are the reason for your union with your W. I know it doesn't feel like it, but you are lucky to have them so much. Keep on telling yourself how great they are and they will get you through.
As far as your R with your wife goes, it's far too early to say how it will go, you've only been apart a few months. DB'ing (especially after D) is a very long process.
Just take one step at a time. I'm here if you want to talk, just remember our time zones are different so you may not get an instant reply.